Research Article

Rapid Identification of Polyhydroxyalkanoate Accumulating Members of Bacillales Using Internal Primers for phaC Gene of Bacillus megaterium

Table 3

Optimization of PCR condition for amplification of internal region of phaC gene using primer set described in Figure 1.

Primer (μM)Annealing temperature (°C)Bacterial species
B. megaterium B. flexus B. endophyticus Bacillus sp. P. yeii P. aeruginosa
(MTCC428)(NAMR4.1)(TMR1.22)(NAMNR4.4)(TMR3.1)(TMR2.13)
PHA +PHA +PHA +PHA −PHA +PHA −
0.9 KbMB0.9 KbMB0.9 KbMB0.9 KbMB0.9 KbMB0.9 KbMB

151+
55+
60+
64+

2.551+
55+
60+
64+

551+*++
55+*++
60+*++
64+*

1051+*++
55+*++
60+*++
64+*

PHA +: polyhydroxyalkanoate accumulating bacteria; PHA −: bacteria not accumulating polyhydroxyalkanoate; *: double band; MB: multiple band; +: positive; −: absent.